Cartridge base insert



FIG. 1 is an isometric view of a cartridge base insert showing my new design.

FIG. 2 is a side view of a cartridge base insert showing my new design.

FIG. 3 is a side view of a cartridge base insert showing my new design.

FIG. 4 is a top view of a cartridge base insert showing my new design.

FIG. 5 is a bottom view of a cartridge base insert showing my new design.

FIG. 6 is a cross sectional view of a cartridge base insert showing my new design; and,

FIG. 7 is an isometric cross sectional view showing the cartridge base insert molded into a cartridge casing.

The broken line showing of a cartridge casing shown in FIG. 7 is included for the purpose of illustrating environment and forms no part of the claimed design. 

CLAIM The ornamental design for a cartridge base insert, as shown and described. 